Overview
Evolution Series™ XPAND IP is a fully software configurable Point-to-Point microwave radio system.
Transmission capacity, Adaptive Coded Modulation (ACM), Ethernet features and TDM-cross-connect are software configured and upgrades can easily be done after installation.
The flexible Universal IFU offers a wide selection of user interfaces as well as scalable Traffic Node configuration.
The single Transceiver variant per frequency band sets a new standard for the logistics of deploying and maintaining large scale microwave networks.
Evolution Series™ XPAND IP is ideally suited for IP/Ethernet backhaul networks prepared for next generation systems and services.
The embedded Ethernet aggregation switch as well as the embedded TDM aggregation capabilities, makes the XPAND IP solution a cost effective solution for networks in transition as well as for all-IP networks.
Its scalability enables operators to spread the network investment cost over time.
The choice of hybrid or all Ethernet solution allows operators to protect existing investments while gradually upgrading the network for future needs.
Details
Evolution Series™ XPAND IP utilises native mapping of Ethernet and TDM into the radio frame. TDM capacity is selectable between 0 and 75xE1/96xT1. Remaining link capacity is used for Ethernet traffic. Fixed or adaptive modulation mode is selectable by user.
Changes and upgrades can be done by the user without hardware replacement of the basic platform.
In adaptive modulation mode, the radio will select the highest possible throughput based on received signal quality.
If the signal quality is degraded due to link fading or interference, the radio will change to a more robust modulation and link throughput is consequently reduced. When signal quality improves, the modulation is automatically increased and link throughput is restored to the original setting.
The throughput changes are hitless (no bit errors introduced). During a period of reduced throughput, the traffic is prioritized based on packet QoS and TDM priority settings. TDM capacity is fixed per modulation state based on the priority setting.